text: /*
   * Driver interaction with extended Linux CFG8021
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   *
   * Alternatively, this software may be distributed under the terms of BSD
   * license.
   *
   */
  
  #include "includes.h"
  #include <sys/types.h>
  #include <fcntl.h>
  #include <net/if.h>
  
  #include "common.h"
  #include "linux_ioctl.h"
  #include "driver_nl80211.h"
  #include "wpa_supplicant_i.h"
  #include "config.h"
  #ifdef ANDROID
  #include "android_drv.h"
  #endif
  
  #define WPA_PS_ENABLED		0
  #define WPA_PS_DISABLED		1
  
  
  /* Return type for setBand*/
  enum {
  	SEND_CHANNEL_CHANGE_EVENT = 0,
  	DO_NOT_SEND_CHANNEL_CHANGE_EVENT,
  };
  
  typedef struct android_wifi_priv_cmd {
  	char *buf;
  	int used_len;
  	int total_len;
  } android_wifi_priv_cmd;
  
  static int drv_errors = 0;
  
  static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv)
  {
  	drv_errors++;
  	if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) {
  		drv_errors = 0;
  		wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
  	}
  }
  
  static void wpa_driver_notify_country_change(void *ctx, char *cmd)
  {
  	if ((os_strncasecmp(cmd, "COUNTRY", 7) == 0) ||
  	    (os_strncasecmp(cmd, "SETBAND", 7) == 0)) {
  		union wpa_event_data event;
  
  		os_memset(&event, 0, sizeof(event));
  		event.channel_list_changed.initiator = REGDOM_SET_BY_USER;
  		if (os_strncasecmp(cmd, "COUNTRY", 7) == 0) {
  			event.channel_list_changed.type = REGDOM_TYPE_COUNTRY;
  			if (os_strlen(cmd) > 9) {
  				event.channel_list_changed.alpha2[0] = cmd[8];
  				event.channel_list_changed.alpha2[1] = cmd[9];
  			}
  		} else {
  			event.channel_list_changed.type = REGDOM_TYPE_UNKNOWN;
  		}
  		wpa_supplicant_event(ctx, EVENT_CHANNEL_LIST_CHANGED, &event);
  	}
  }
  
  int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf,
  				  size_t buf_len )
  {
  	struct i802_bss *bss = priv;
  	struct wpa_driver_nl80211_data *drv = bss->drv;
  	struct wpa_driver_nl80211_data *driver;
  	struct ifreq ifr;
  	android_wifi_priv_cmd priv_cmd;
  	int ret = 0;
  
  	if (os_strcasecmp(cmd, "START") == 0) {
  		dl_list_for_each(driver, &drv->global->interfaces, struct wpa_driver_nl80211_data, list) {
  			linux_set_iface_flags(drv->global->ioctl_sock, driver->first_bss->ifname, 1);
  			wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STARTED");
  		}
  	} else if (os_strcasecmp(cmd, "MACADDR") == 0) {
  		u8 macaddr[ETH_ALEN] = {};
  
  		ret = linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, macaddr);
  		if (!ret)
  			ret = os_snprintf(buf, buf_len,
  					  "Macaddr = " MACSTR "\n", MAC2STR(macaddr));
  	} else { /* Use private command */
  		memset(&ifr, 0, sizeof(ifr));
  		memset(&priv_cmd, 0, sizeof(priv_cmd));
  		os_memcpy(buf, cmd, strlen(cmd) + 1);
  		os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
  
  		priv_cmd.buf = buf;
  		priv_cmd.used_len = buf_len;
  		priv_cmd.total_len = buf_len;
  		ifr.ifr_data = &priv_cmd;
  
  		if ((ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr)) < 0) {
  			wpa_printf(MSG_ERROR, "%s: failed to issue private commands\n", __func__);
  		} else {
  			drv_errors = 0;
  			if((os_strncasecmp(cmd, "SETBAND", 7) == 0) &&
  				ret == DO_NOT_SEND_CHANNEL_CHANGE_EVENT) {
  				return 0;
  			}
  
  			ret = 0;
  			if ((os_strcasecmp(cmd, "LINKSPEED") == 0) ||
  			    (os_strcasecmp(cmd, "RSSI") == 0) ||
  			    (os_strcasecmp(cmd, "GETBAND") == 0) )
  				ret = strlen(buf);
  			else if (os_strcasecmp(cmd, "P2P_DEV_ADDR") == 0)
  				wpa_printf(MSG_DEBUG, "%s: P2P: Device address ("MACSTR")",
  					__func__, MAC2STR(buf));
  			else if (os_strcasecmp(cmd, "P2P_SET_PS") == 0)
  				wpa_printf(MSG_DEBUG, "%s: P2P: %s ", __func__, buf);
  			else if (os_strcasecmp(cmd, "P2P_SET_NOA") == 0)
  				wpa_printf(MSG_DEBUG, "%s: P2P: %s ", __func__, buf);
  			else if (os_strcasecmp(cmd, "STOP") == 0) {
  				wpa_printf(MSG_DEBUG, "%s: %s ", __func__, buf);
  				dl_list_for_each(driver, &drv->global->interfaces, struct wpa_driver_nl80211_data, list) {
  					linux_set_iface_flags(drv->global->ioctl_sock, driver->first_bss->ifname, 0);
  					wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STOPPED");
  				}
  			}
  			else
  				wpa_printf(MSG_DEBUG, "%s %s len = %d, %lu", __func__, buf, ret, buf_len);
  			wpa_driver_notify_country_change(drv->ctx, cmd);
  		}
  	}
  	return ret;
  }
  
  int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration)
  {
  	char buf[MAX_DRV_CMD_SIZE];
  
  	memset(buf, 0, sizeof(buf));
  	wpa_printf(MSG_DEBUG, "%s: Entry", __func__);
  	snprintf(buf, sizeof(buf), "P2P_SET_NOA %d %d %d", count, start, duration);
  	return wpa_driver_nl80211_driver_cmd(priv, buf, buf, strlen(buf)+1);
  }
  
  int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len)
  {
  	/* Return 0 till we handle p2p_presence request completely in the driver */
  	return 0;
  }
  
  int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow)
  {
  	char buf[MAX_DRV_CMD_SIZE];
  
  	memset(buf, 0, sizeof(buf));
  	wpa_printf(MSG_DEBUG, "%s: Entry", __func__);
  	snprintf(buf, sizeof(buf), "P2P_SET_PS %d %d %d", legacy_ps, opp_ps, ctwindow);
  	return wpa_driver_nl80211_driver_cmd(priv, buf, buf, strlen(buf) + 1);
  }
  
  int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon,
  				 const struct wpabuf *proberesp,
  				 const struct wpabuf *assocresp)
  {
  
  	return 0;
  }
  